The recent sale of a penthouse at Boston’s Ritz-Carlton was one for the record books, as it is the most expensive of all previous residential unit sales in the development’s two residential towers. Penthouse 2A at the 2 Avery St. tower, which includes five bedrooms and five-and-a-half bathrooms across 4,700 square feet on the 39th floor, sold for $10.2 million.

“I think it’s hard to find that much square footage, all on one level, so, when you’re looking in that super-high-end market, to find a unit with that much on one floor is interesting to a lot of folks,” Campion & Co. broker and listing agent Mark Doherty said to Bisnow.

Though the sale surpassed anything else sold in the Ritz-Carlton by 20 percent, this luxury condo is far from the most expensive unit in the neighborhood, according to Bisnow. The nearby Millennium Tower’s Grand Penthouse was sold to billionaire John Grayken for $35 million. In 2016, the Millennium Tower boasted more million-dollar sales than Back Bay and Beacon Hill combined.